Moak 36" Bandsaw Restore Continues

[woodguy1975]

I haven't been around on the board much, but I have returned to the shop and the bandsaw restoration. Something is wrong with my work computer and I can't get on the site from there. I'm adding pictures to the restoration gallery as I make progress. Please keep checking back if you are interested. I've got nearly all the components back and ready for reassembly. I'm still waiting on the correct bearings for the top wheel but that is it. The enclosure and fasteners arrived today and all the drive components arrived yesterday.

Here is a link to the gallery page.

Here are a few choice pictures....

This is the new lower door I had fabricated to replace the old one with a hole it in from the lower shaft. That "hole" is common among these older saws so I redesigned the door and had a new one made. Of course.

It is ready for a paint job.

The drive....

The line reactor...

The brake resistor...

I'm going to start cutting holes in my new enclosure and get it mounted to the saw. Once I get a nice weekend day to spray this saw will be ready for reassembly.

Thanks for looking,

John

 

[Monty]

John, I only have one thing to say....



YOU



SUCK




... and I know you know it Can't wait to try that big bandsaw out -- let me know when you have our (um, I mean YOUR) bandsaw ready to run!

 

[FredP]

what a BEAST!!!!!!!!!!!!!!!!! thats gonna be some kinda nice when ya git er done.

fred

 

[Monty]

BTW - dude, I just looked at your gallery... that lens is awesome! I gotta get me one of them!

 

[woodguy1975]

Which lens are you talking about dude. The tokina 12-24mm?? I love that ultrawide.

BTW, all the new bandsaw restoration photos were shot with my new little pocket camera a Canon Elph SD1000. I needed a small camera for China shopping trips. My SLR and bag are just too big for those kind of trips.

John

 

[Travis Porter]

Looking good. What is the "braking resistor"?

 

[jeff...]

I was thinking the samething Travis - something that resists braking?

 

[Monty]

He's updating the old cable brake for that bandsaw to a motor brake. I'll let him explain, but it sounds really cool!

 

[woodguy1975]

Looking good. What is the "braking resistor"?

To put it simple. The brake resistor will absorb the extra energy created by the motor during braking. When a motor decels it acts as a generator creating power. You need to blead off that power in order to get full braking torque out of the drive. The resistor is a dump that burns off that extra engery in the form of heat. You really only need a braking resistor when you are braking loads with a lot of inertia like a large bandsaw wheel. The resistor takes the braking torque of the drive from 25% to 125%. This will allow me to electrically brake the saw in less than 5 seconds if I desire. Without the resistor I could probably only get a decel of 10-15 seconds. Of course it's me so I had to include the brake resistor.

The line reactor will absorb the voltage from the drive high voltage buss of the drive to protect the motor. You should do this any time you run a non inverter duty motor with an inverter. If it is only occasional use you are probably ok, but once the school is going again I see this saw getting a lot of use so I included it. I've got an electical cabinet for everything that will be mounted to the back side of the saw. It will include a disconnect for the incoming power. I'm going to start and stop the saw with the orginal start/stop push buttons so it looks a little original.

I'll put out more info on the electrical part of this rebuild as I get more done on it.

Good Luck,

John

 

[John Reeves]

Mostly, it looks like you are having fun.

 

[JohnsonMBrandon]

I'll give it 6 months before this 36" bandsaw is not big enough. :rolf:..........just messing John. Looks like everything is coming along nicely.

 

[cpowell]

Man, John I get excited just looking at the parts pics...and it isn't even my toy! :eusa_danc :eusa_danc :eusa_danc

Pretty darn good explanation of resistive braking from an M.E.
John :slap: Me

I can't wait to see the finished pics.

Chuck

 

[cskipper]

I'll give it 6 months before this 36" bandsaw is not big enough. :rolf:..........just messing John. Looks like everything is coming along nicely.

Probably closer to truth than even John wants to admit (especially if he wasn't going to be in China so much)! Of course, then he would need to have a workshop with higher ceilings :lol: